Home / 10,918.67-16,377.99-3,422.28

Finding the Fourth Proportional to 10,918.67, 16,377.99 and 3,422.28

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Solution

The fourth proportional to 10,918.67, 16,377.99 and 3,422.28 is: 5,133.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918.67 : 16,377.99 = 3,422.28 : x
  2. Step 2: Convert to fraction form
    10,918.67/16,377.99 = 3,422.28/x
  3. Step 3: Cross multiply
    10,918.67x = 16,377.99 × 3,422.28
  4. Step 4: Simplify right side
    10,918.67x = 56,050,067.62
  5. Step 5: Solve for x
    x = 56,050,067.62/10,918.67
  6. Step 6: Final answer
    x = 5,133.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.